Automobile-horn.



W. PENNOCK.

AUTOMOBILE HORN.

APPLICATION FILED JULY 10, 1911.

1,022,564. Patented Apr. 9, 1912.

COLUMBIA PLANOGRAPH COi, WASHINGTON, D. C.

WILLARD PENNOCK, OF MINERVA, OHIO.

AUTOMOBILE-HORN.

Specification of Letters Patent.

Patented Apr. 9, 1912.

Application filed July 10, 1911. Serial No. 637,804.

T 0 all whom it may concern:

Be it known that I, HLLARD PENNOCK, a citizen of the United States, residing at Minerva, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Autoinobile-l-lorns; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to signals, and more especially to horns such as are used on automobiles and the like; and the object of the same is to produce a horn of this character wherein the pipes or tubes which sound the chime or chord are capable of adjustment over the outlet from the horn-body so that the tone of the alarm can be varied. WVith this and other objects in view, the construction of the device preferably follows that set forth in the specification and claims and shown in the drawings wherein Figure 1 is a side elevation and Fig. 2 a front elevation of this improved horn complete; Fig. 3 is an enlarged sectional detail on the line 33 of Fig. 1; Fig. 4 is a perspective detail of the body portion of the device inverted; Fig. 5 is a perspective detail of the bracket which is adapted to be attached to said body.

Referring to the drawings, the numeral 1 designates the body of this improved horn or whistle, which has a cylindrical bore and is split at one end and provided with ears 2 adapted to be drawn together or toward each other by a nut 3 so that this end of the body can be attached to the outlet end of the exhaust pipe of an automobile muffier. The other end of the bore is open, but may be closed by a shutter 5 mounted on an arm 6 pivoted between two ears 7 on the body and thrown normally open by means of a spring 8, while a wire or cable 9 extends from the other end of said arm to a point within convenient reach of the operator so that when drawn upon the shutter is thrown across the end of the body 1 (which normally forms an extension of the outlet pipe of the muffler) and it is thereby closed and the gases from the outlet are diverted through the horn proper.

Secured to or by preference formed integral with the body is a seat 10 extending longitudinally thereof, and a long slot 11 opens from the interior or bore of the body through this seat. The latter is flat on its outer face at one side of the slot, as at 12, and the face at the other side thereof is cut away to produce notches 18 standing at an angle to and communicating with. said slot and the number thereof corresponding with the number of notes in the chord which the horn is to sound. Disposed upon this seat and adapted to lie upon its fiat portion 12 and upon the webs between the notches 13 is a flat plate 14, and both the plate and the flat portion of the seat are pierced with holes 15.

The horn proper is by preference composed of a number of tubes 20 diifering in length, closed at their outer ends as at 21 and open at their inner ends which are preferably cut off bias on a plane oblique to the length of the several tubes which therefore stand parallel with each other and by preference stand vertically erect from the body member.

The numeral 23 designates a bracket having a series of lips 24 each riveted as at 25 to one of the tubes 20, and having its lower .lip deflected obliquely to the length of said tubes and cut off flat as seen at 27 and pierced with parallel slots 28 spaced apart the same distance as are the holes 15.

In setting up this improved horn, the inlet end of the body member is attached to the outletend of the exhaust pipe from the muffler by turning the screw 8 so as to clamp its split end upon said tube, and then the wire 9 is attached to the outer end of the arm 6 and led to a point within convenient reach of the operator. The plate 14 is applied to the fiat portion 12 of the seat with its holes 15 in register with those in said flat portion, when its free edge will stand over the notched portion of the seat and will convert the notches 13 into openings which are rather thin and wide lengthwise of said slot. Next the lip at the lower end of the bracket 23 is brought into position against the outer face of the plate 14 and the flat face 27 laid over the same with its slots 28 in register with the openings 15; and finally screws 30, 30 are passed through said slots and through the holes in the plate 14, and take into threads in the holes in the flat base 12 of the seat on the body member. When the screws are drawn up tightly, they clamp the bracket to the plate and the plate upon the seat and therefore hold all parts together, but it is to be understood that instead of screws I might use bolts or other fastening means if preferred. When it is desired to adjust the tone or the force of the blast so as to adapt this horn to automobiles having an exhaust of higher or lower pressure, the screws or other connecting devices are loosened, and the inner bracket and tubes shifted so as to vary the position of their open ends with respect to the open extremities of the notches 13. It is to be understood that the plate is held in fixed relation to these notches which of course must be such that the outlet of the exhaust through them will create a noise, but the tubes 20 and the bracket carrying them are held in adjustable relation to the plate and hence to the outer ends of the notches 13 where the noise occurs, and the adjustment at this point will vary the tone of the noise and will adapt the horn to automobiles having exhaust pressures of differing force. This I consider the gist of the present invent-ion, whose exact details are otherwise susceptible of considerable change.

What is claimed as new is:

1. An automobile horn comprising a cylindrical body having a longitudinal slot, a seat upon the exterior of said body having a fiat face at one side of the slot and notches in its face at the other side thereof, a plate mounted upon said fiat face and over said slot with its edge extending across said notches, and tubes of different lengths closed at one end and open at the other and with their open ends disposed adjacent said notches.

2. An automobile horn comprising a tubular body having a longitudinal slot in its wall, a seat upon the exterior of said wall around the slot and notches in the face of the seat at one side of said slot, a plate mounted upon said seat and over the slot with its edge extending across said notches, a bracket having a lip lying over said plate, fastening means passing through the lip and plate and into openings in the flat face of the seat, and a series of tubes carried by said bracket with their open ends adjacent the open ends of said notches.

3. An automobile horn comprising a tubular body slotted longitudinally and formed with an integral seat around the radially outer end of the slot with a flat outer face at one side pierced with threaded holes and the face at the other side of the slot provided with notches, a flat plate adapted to overlie said seat and having holes registering with those in the face, a bracket having an angular lip deflected from it and pierced with slots adapted to register with the holes in said plate, a series of tubes carried by said bracket with their open ends out off flush with the face of said lip, and screws passing through the slots therein and through the holes in said plate and taking into the threaded holes in said seat, as for the purpose set forth.

In testimony whereof I have hereunto set my hand' in presence of subscribing witnesses.

WILLARD PENN OCK. Witnesses J. T. DE FORD, J. A. GUNDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

